Renewable Energy Solar Energy Wind Energy Geothermal Energy Bioenergy Hydropower
 

The Decade of Climate Change and Peak Oil

By Tam Hunt, Renewable Energy Consultant
January 7, 2010   |   24 Comments

Do you like this opinion & commentary?

Email   Bookmark Bookmark   Print   Feed   Share
 

The information and views expressed in this article are those of the author and not necessarily those of RenewableEnergyWorld.com or the companies that advertise on its Web site and other publications.

24 Reader Comments
Comment
1 of 24
January 7, 2010
Convert our coal burning electrical plants to natural gas. We'll have the same energy, and we'll cut our CO2 emissions to less than 1/2 the current levels. It would not take long. Remove the coal grates and replace them with gas burners, like those on a giant kitchen stove. All we do with coal is boil water, we can do that with natural gas, more quickly, efficiently, and cleanly----nothing else needs to change. Everything else remains the same. Buildings, boilers, turbines, generators, condensors, controls, grid connections all remain the same. Take the dump hoppers, skip loaders, trucks, shovels and bulldozers needed to handle the coal and sell them for scrap.
The air will be clean.
There will be no strip mines.
We'll have no new contaminants flowing into the 40% of our streams and waterways that EPA says are currently polluted beyond allowable limits.
We can easily do that within ten years.

Mandate that all new vehicles sold in the US must be either diesel or flex fuel/ CNG(compressed natural gas) capable.. The technology is available, and currently in production and on sale now.
The air will be clean.
We can use our vehicles exactly the same way that we use them now.
There is no major change needed to manufacturing, service or fueling infrastructure needed.
No batteries required.
And it will cost less to fuel our vehicles.

Use solar thermal energy to replace natural gas now used to heat homes, buildings and hot water. Solar thermal is effective, inexpensive to manufacture and install, does not require expensive maintainence, and is ideally suited as an auxilliary system to current systems now in use. Your furnace or hot water heater works just like it always has, it will just come on much less frequently, and use less energy when it does.

We can do that within ten years easy.
Comment
2 of 24
January 8, 2010
It is clear that all forms of energy fossil, nuclear, wind, geothermal, solar, and hydro will be needed by the human population going forward. However, one important consideration, that I have not yet seen emphasized, is the need for oil in non-energy production of fertilizers, plastics, and drugs to name a few. Its use as an energy fuel burned in combustion engines is a major waste. Could you address this issue in your future comments?
No image available
Comment
3 of 24
Anonymous
January 8, 2010
In comment #1 Fred suggests we convert all coal power plants to be powered by methane and eliminate coal as a source of electrical power. Several comments come to mind:
1) You cannot easily convert a coal power plant to run on methane as Fred implies; in particular, to achieve proper efficiency methane is used in combined cycle systems, which are very different from coal plants.
2) Even if, by some miracle, methane should become as cheap and abundant as would be required to nearly replace coal, you would not need to convert the coal power plants. All that would be needed would be to utilize some of the combined cycle generators for base load power rather than relying on them only for peaking power. Most of the time we have a huge excess capacity of methane plants sitting idle.
3) Methane is a very expensive fuel and replacing coal with it would be prohibitively expensive.
4) We don't produce enough methane to do as Fred suggests--even if we don't also use it for a transportation fuel--and are unlikely to be able to increase production on the scale Fred hopes for.

We should be working on reasonable long term solutions rather than rapid but expensive initial reductions in CO2 generation....
Steven
No image available
Comment
4 of 24
Anonymous
January 8, 2010
The author writes "And as California goes, so goes the nation (or so we like to think)" and "Pray Jerry Brown makes his way back to the Governor's mansion."

Given CA's endemic red tape, massive budget deficits, and other major problems, I'll be hoping for the miracle of unanswered prayers.
Steven
Comment
5 of 24
January 9, 2010
Steven-------"3) Methane is a very expensive fuel and replacing coal with it would be prohibitively expensive."-----------

Nobody heats their home or hot water with electricity(coal or nuclear) if natural gas is available.
-------"Electric vs Gas

Which is better - gas or electric?

In almost all of California, natural gas is the most economical way to go. It usually costs three times as much to heat the same amount of water with electricity as it does with gas.

If you have an electric water heater and a gas furnace or stove, you may save money in the long run if you extend the gas line to your water heater.

If you live in a rural area that has propane service instead of natural gas, propane is usually less expensive than electricity."------------

Steven-------"4) We don't produce enough methane to do as Fred suggests--even if we don't also use it for a transportation fuel--and are unlikely to be able to increase production on the scale Fred hopes for."---------

Relatively recent improvements in drilling and recovery technology has greatly increased productivity of existing sources. So much so that wells are being capped because of a lack of storage available. There is a glut of natural gas on the market right now. Prices are low, and likely to stay relatively low because recovery technology has suddenly added a much greater supply available than there is demand for.

Solar thermal is simple, effective, reliable, easy to manufacture, install and maintain. Solar thermal is ideally suited to heating buildings and hot water as an auxiliary system to existing furnaces and water heaters. The largest use of natural gas. If drivers install solar thermal to their homes, and then use the natural gas displaced for that use(or the $$$ to buy electricity if that is what they use) to power their vehicles, they are in effect, running their vehicles on free solar energy.
Comment
6 of 24
January 9, 2010
Reference link for above comment:

California Energy Commission Consumer Energy Center

http://www.consumerenergycenter.org/home/appliances/waterheaters.html

In 1990, the State of Louisianna commissioned a study to look at the benefits of converting the fleet of state vehicles to run on compressed natural gas(CNG). The study found that it would only be marginally cheaper to convert vehicles to natural gas. By the time cost of conversion and compressors was figured in, only a few very high mileage vehicles would be able to see enough cost savings to be worth the time and investment. The study ignored the environmental benefits of using methane vs. petroleum. At the time the study was done however, the cost of gasoline was $.74 per gallon. The cost of gasoline now is $2.75/gallon(in my area), and the cost of gasoline is far more likely to continue to rise in the future and very unlikely to go down significantly. The cost of methane is about the same now as at the time of the study.
It is a whole new ballgame for methane powered vehicles now than it was in 1990. Even if the cost of methane doubled, it would STILL be cheaper to use than petroleum as shown in this study.

Compressed Natural Gas Vehicles

Deptartment Of Natural Resources

Technical Note

http://dnr.louisiana.gov/sec/execdiv/techasmt/alternative_fuels/cng.htm
Comment
7 of 24
January 9, 2010
The major governmental way of trying to reduce/reverse the effects of economic recession is try to "spend our way out". This involves tax reductions, increased spending programs etc. to increase jobs and economic activity. This amounts to mortgaging the future for small incremental gains now, in the hope that future economic activity will pay for present spending and ignores any future spending needs. Not very wise economic policy, and it guarantees future inflation in order to "put $$$ into the hands of consumers to prime the pump". It also is absurbly expensive and wasteful no matter how you look at it.

Energy is a basic cornerstone of the economy. Without cheap energy, all other goods and services no matter what they are will be more expensive. If we convert our vehicles to run on natural gas that costs 1/2 what it costs to run on petroleum, we put money back into the "hands of consumers" every time they fill up. It does not cost the government anything, it does not create new beauracracy, and it does not create inflation because it does not create new $$$ pumped into the economy---it frees up $$$ that would have been spent on petroleum to continue to circulate in the economy in other uses. Consumers have more to spend.on other things than petroleum.

"Economic Stimulus" amounts to a subsidy to petroleum, and is counter productive economic growth in the long run. That is why job loses continue to rise even in the face of vastly increased "economic stimulus" spending. Look at the news for the last year---the only "good" news has been, job loses are not quite as bad as expected. Good news, the ship is not sinking quite as fast as we expected, bad news, the ship is still sinking.

It seems like an easy choice to me.
No image available
Comment
8 of 24
Anonymous
January 9, 2010
Regarding Fred's comments in comment #5:
In particular, Fred writes "Nobody heats their home or hot water with electricity(coal or nuclear) if natural gas is available."
This is, of course, not a riposte to my point that generating electricity with methane is much more expensive than using coal. As an aside, I will remark that the use of the word "nobody" is an exaggeration--if you use a geothermal heat pump, you typically power the pump with electricity and usually pay less than heating with natural gas (at least if you don't have to buy all your electricity from methane power plants).

Fred also writes: "Relatively recent improvements in drilling and recovery technology has greatly increased productivity of existing sources. So much so that wells are being capped because of a lack of storage available. There is a glut of natural gas on the market right now. Prices are low, and likely to stay relatively low"

The benefits of lower priced shale gas production will partially replace imports and expensive off-shore production, but will not lead to production increases that are nearly enough to replace all our coal fired electricity generation with methane (which would require a factor of 3 increase in methane going to the electricity sector). Recent pricing pressure is also partly due to recession induced reduction in demand and prices often fluctuate more dramatically than supply does. Advances in nonconventional natural gas production are important, but are overhyped and are not so dramatic that they will lead to huge realignments in the electricity generation mix.
Steven
Comment
9 of 24
January 9, 2010
--------"As an aside, I will remark that the use of the word "nobody" is an exaggeration--if you use a geothermal heat pump, you typically power the pump with electricity and usually pay less than heating with natural gas"---------

Payback period for installing a ground source heat pump in a detached residence Country Payback period for replacing
natural gas heating oil electric heating
Canada 13 years 3 years 6 years
USA 12 years 5 years 4 years
Germany net loss 8 years 2 years

Pay back period of 12 years = 8% reduction in cost
Pay back period of 13 years = 6% reduction in cost

Hardly an earth shaking reduction in monthly fuel cost; especially considering the high initial purchase and installation cost of a geothermal heat pump unit. I suspect that most GTHPs are bought by people using electrical heating who do not have natural gas available.
Pay back period of 4 years = 25% a far stronger justification for the added purchase and installation expense.
At pay backs of 6-8%, you are only talking about reducing your monthly energy bill from $100 to $92-94. If the initial purchase and istallation are financed(as in a home purchase)----you monthly energy cost + interest on the financing loan means you end up spending more on energy per month than you were before.

--------"The benefits of lower priced shale gas production will partially replace imports and expensive off-shore production, but will not lead to production increases that are nearly enough to replace all our coal fired electricity generation with methane (which would require a factor of 3 increase in methane going to the electricity sector). "--------

Then use less electricity. Better insulation, more efficient lights, heat pumps, solar thermal for heating and water, etc. etc.
(continued, next)
Comment
10 of 24
January 9, 2010
Why do you accept blindly projections that energy demand will double in twenty years and that those demands can be met by increasing coal mining or oil drilling, but increasing use of natural gas is impossible? It is far easier to find, extract and use natural gas than it is either coal or petroleum.
And far less damaging.

Not only that, methane can be made from any type of organic material at all, including sewage treatment and landfills. We need to treat sewage anyway.

link for cost comparison on above post:
Geothermal heat pump [Wikipedia]
http://en.wikipedia.org/wiki/Geothermal_heat_pump
Comment
11 of 24
January 9, 2010
Peak Oil is the other Inconvenient Truth. I am convinced that this new decade is the "now or never" decade to resolve peak oil. You don't hear much about peak oil in the media. While there are movie documentaries about peak oil they are not prevalent and you have to really search for them. Tam Hunt, who is no relation to me, did an excellent job of pointing out that the economy and the environment are closely interlinked, not mutually exclusive. Those who say we can't resolve peak oil now because we have to fix "the economy" don't realize that investing in renewable energy is economic stimulus and that all of the major recessions in recent memory have followed oil price spikes. The 1973-1974 Arab oil embargo was followed by the 1974-1975 recession, the 1980 oil spike was followed by the 1981-1982 recession and the spike of $147 a barrel oil in July 2008 was closely followed by the current Great Recession, the worst economic downturn since the Great Depression of the 1930's. In my view the Great Recession is the first economic downturn with a link, whether direct or indirect, to peak oil. I believe that unless we deal with peak oil in this decade we will have a depression in the next decade that will dwarf the 1930's. As far as other finite resources such as natural gas, nuclear, non-energy uses of oil, etc. everyone should watch on You Tube, "The Most Important Video You Will Ever See". If it doesn't deserve that title, it comes pretty darn close. It uncovers in plain language the self-serving Polly-Anna predictions by the finite fuels industries. I will say this though. I think natural gas would be a good transition fuel. With energy conservation measures and other renewable energy technologies, we could transition to bio-methane, e.g. CNG plug-in hybrid vehices, electric generators. It would not require the kind of modifications that would be necessary with, say, gasoline to ethanol and it could be done without disrupting food supplies.
No image available
Comment
12 of 24
Anonymous
January 10, 2010
In comment 10 Fred writes:
"Why do you accept blindly projections that energy demand will double in twenty years and that those demands can be met by increasing coal mining or oil drilling, but increasing use of natural gas is impossible? It is far easier to find, extract and use natural gas than it is either coal or petroleum.
And far less damaging."

I know no one who accepts such projections. I also know no one who thinks it is easier to find and recover natural gas than it is to mine coal--coal is cheap for a reason. Increased sources of unconventional natural gas may delay the time when Tam begins to worry about "peak methane" and may provide for some transportation fuel after oil prices really spike, but I rather doubt we are ever going to find enough to replace coal at affordable prices. Fred seems to pick curious times to be concerned about economics. He is willing to spend lavishly to replace all coal generation with methane generation, presumably to address global warming. However, when it comes to geothermal heat pumps he feels the pay back period for converting to such a system as compared to using natural gas for heat isn't short enough. Geothermal heat pumps also reduce CO2 production and may even SAVE money (they also provide efficient A/C and thus reduce peaking generation needs).
Steven
Comment
13 of 24
January 10, 2010
--------" I also know no one who thinks it is easier to find and recover natural gas than it is to mine coal--coal is cheap for a reason."---------

??????????-----do you even know what a strip mine IS?
No image available
Comment
14 of 24
Anonymous
January 10, 2010
In response to Fred's comment #13:
"??????????-----do you even know what a strip mine IS?"
Yes--a very cheap and easy way to extract coal. If Fred wants to complain that these are environmental misfortunes, I won't quibble, but if he insists that natural gas will be easier and cheaper to obtain than such methods of getting coal I will disagree. I would like to see a reduction in coal use too--but this requires the development of feasible alternatives.
Steven
Comment
15 of 24
January 10, 2010
-------"Yes--a very cheap and easy way to extract coal."---------

How much is the land, water and air that every living thing including you needs to sustain life worth?

Just give us a rough $$$ estimate of how much it is worth for you to have nothing to eat, drink or breathe.
No image available
Comment
16 of 24
Anonymous
January 10, 2010
Regarding Fred's comment #15:
"-------"Yes--a very cheap and easy way to extract coal."---------

How much is the land, water and air that every living thing including you needs to sustain life worth?

Just give us a rough $$$ estimate of how much it is worth for you to have nothing to eat, drink or breathe."

Aha! I have found a feasible alternative to coal--we can run a turbine while Fred continues to vent steam at me.
Steven
Comment
17 of 24
January 10, 2010
ROTFL!!!!!! (rolling on the floor laughing)

{your comment brought the Intel commercial, "Our jokes aren't like your jokes." to mind.}

I guess I would be the guy with the cup of coffee saying "very funny".

I LOVE that commercial.

OK, I have to go get a cup of coffee----don't change anything while I'm gone.
Comment
18 of 24
January 11, 2010
Not too long ago I looked into the carbon footprint of natural gas. What I found surprised me. It is not very good if you compress it all the way down into a liquid. The electric power expended to do this is significant.

As usual, we have a tendency to look before we leap. Garbage truck fleets that use liquefied natural gas are emitting a lot less carbon out of their tail pipes, but if the gas was compressed with power from a coal fired plant, the lifecycle GHG emissions are not so impressive.
Comment
19 of 24
January 11, 2010
Russ------" but if the gas was compressed with power from a coal fired plant, the lifecycle GHG emissions are not so impressive."----------

Then don't compress it with electricity from a coal fired plant. Methane can be used directly in diesel engines that can generate electricity. Catapillar makes several models, eight I think, some of which are specifically tuned to run on field methane, straight from the well head. As a matter of fact, I don't think it is a good idea to use coal fired electricity to do anything. Just using fossil methane instead of coal will produce less than 1/2 the CO2 of coal to produce the same amount of energy.

Secondly, CO2 is a GHG, but it is not the only GHG. Methane is also a GHG produced naturally by the anaerobic action of clostridium bacteria in the decomposition of organic matter. Methane has 17X the GHG effect on the atmosphere to retain infrared heat that CO2 does. If we capture methane that would have ordinarily escaped into the atmosphere, and burn it we produce CO2. We exchange high GHG effect methane to low GHG effect CO2. If we mix just 6% biomethane(made from treating sewage for instance) with fossil methane, the net warming effect on the atmosphere is the same as if we had done nothing.

We only need a 6% biomethane mixture to produce no GHG effect in the atmosphere. Anything over a 6% biomethane mixture will produce a negative GHG effect in the atmosphere.

I do not know of any other way to produce a negative GHG effect in the atmosphere.
Comment
20 of 24
January 11, 2010
Steven suggested that people use GTHPs to heat their homes. GTHPs are economically best suited to replace electrical heating. GTHPs according to the article reduce electrical use to about 25% of previous use. Let us say(for the sake of illustration), that it takes ten tons of coal to generate the electricity to heat 1 house, 1 season. That equals 37 tons per year of CO2 into the atmosphere to heat one home. 37 X .25 = 9.25 tons. Now lets say that we convert the coal fired plant to natural gas, 9.25 tons X .5 = 4.625 tons Now let's say that we add some solar heat collectors and reduce the degree/days load on the GTHP by 50%. 4.625 X .5 = 2.3125 tons of CO2 produced per season to heat that one house.

2.3125 divided by 37 = 6.25%

I think if we reduce the amount of CO2 produced by 93.75% we won't have to worry about carbon footprints.
No image available
Comment
21 of 24
Anonymous
January 12, 2010
Death of hope? Rebirth of hope? What we have here is another Chicago politician speaking out of both sides of his mouth, this time with more eloquence than the one before. Generation Y is beginning to get on my nerves.
Comment
22 of 24
January 12, 2010
EIAs 2010 Annual Energy Outlook Sites the Following Fuel Costs:
- Coal, Average Delivered Price - $2.16 per million Btu
- Natural Gas, Wellhead Price - $7.85 per million Btu
I believe the recent popularity, and higher growth rates for NG (46% capacity addition for natural gas; versus 12% for coal) is due to the lower capital costs involved in constructing a new NG plant; not due to an expected sustained drop in fuel costs.

http://www.eia.doe.gov/oiaf/aeo/pdf/appa.pdf
Comment
23 of 24
January 13, 2010
Do you have coal delivered to your house through a chute going into the basement? (I grew up in coal country---I remember those days.)

It seems to me that the more pertinent section of the document that you have cited is this----cost to the consumer.........

Residential
Liquefied Petroleum Gases . . . . . . . . . . . . . . 25.67 29.35
Distillate Fuel Oil . . . . . . . . . . . . . . . . . . . . . . 19.86 24.47
Natural Gas . . . . . . . . . . . . . . . . . . . . . . . . . . 12.66 13.48
Electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.12 33.29

That is the 2007 and 2008 prices. As for their predictions, well, I'm not too convinced that the EIA is any better at predictions than Madame Zora and her tea leaves. (LOL---just my opinion)

{in the above table, Liquefied Petroleum Gases means propane}
Comment
24 of 24
August 19, 2010
Renewable energy can replace oil. And it has in some scenarios (there are already examples of carbon neutral homes, cars, and businesses).
The roll out of technology will take time of course- the lengthy pay-back period and initial investment challenges the speed at which we replace oil. However, support is coming in the form of "pay as you save schemes", grants and subsidies from government backed businesses (such as the Carbon Trust, and Energy Saving Trust).

The technology that is appropriate in any house, businesses, or particular country/region will have to be specific to the climate of course- since solar energy cannot be supported in areas where daylight hours are limited and/or solar strength is weak- at least the payback period and limited production capabilities make such schemes inefficient and unattractive to investors.

The good news comes in the form of the possibilities that are currently available for further renewable energy- we currently have such low saturation and 'take-up' of renewable energy technology- leaving huge scope for further production.

Incentives, grants, and support for switching to alternative fuels is encourage-able- long term financial benefits can be sought by consumers and businesses willing to make changes to their homes and/or businesses.

As an energy consultancy (www.amberenergy.net) it is our job to support the change to alternative fuels whilst supporting the current set-up of individuals' homes and businesses. When considering energy contracts businesses and consumers can choose to support the change to renewable energy by electing a contract/supplier of 100% renewable energy. Alternatively, a contract where some of the energy is from a renewable source may be preferred. This is due to renewable energy currently carrying a premium (when compared to a standard tariff)- so choosing renewable energy is not financially viable unless business/consumer tastes are strong enough or 'knock-on' affects (such as positive publ
Add Your Comment

Registered users, please make sure to Sign-In. We and others want to know your ideas and opinions. If you are not yet Registered -- it's quick and easy. Just click below.
Thanks!

Register Now   Sign-In

Tam Hunt

View Tam Hunt's Profile
About: Tam Hunt is managing member of Community Renewable Solutions LLC, a renewable consulting and project development company focused on community-scale wind and sol... more »

Advertise With Us

National Hydropower Association DNV KEMA Energy & Sustainability Nextronex, Inc. Renewable Energy World Africa Valentin Software, Inc - providing Solar Design Software European Wind Energy Association groSolar
World's #1 Renewable Energy Network
PennWell
Renewable Energy World Magazine International Renewable Energy World Conference & Expo North America Renewable Energy World Conference & Expo Europe Renewable Energy World Conference & Expo Asia Renewable Energy World Conference & Expo India Renewable Energy World Conference & Expo Africa
RenewableEnergyWorld.com Solar Power Gen Conference & Expo Hydro Review Magazine Hydro Review World Magazine
HydroVision International HydroVision Brazil HydroVision India HydroVision Russia
Twitter Facebook Linked In RSS Feeds e-Newsletters